Voorbeelden van postganglionic

• In the present study, injections of the anterior chamber were used to label the postganglionic and preganglionic afferents to the iris sphincter pupillae muscle.

• This extent of transsynaptic labeling was not obviously correlated with the amount of direct retrograde labeling of postganglionic neurons in the ipsilateral ciliary ganglion.

• These biological responses are mediated both by direct autonomic innervation of target organs by postganglionic neurons and by secretion of epinephrine and norepinephrine by the adrenal medulla.

• The two exceptions mentioned above are postganglionic neurons of sweat glands and chromaffin cells of the adrenal medulla.

• The "sympathetic postganglionic fibers" originate from the superior cervical ganglion.

• There, they synapse with postganglionic fibers which reach the gland by hitch-hiking via the auriculotemporal nerve, a branch of the mandibular nerve.

• Once inside the prevertebral ganglia, the individual neurons comprising the nerve synapse with their postganglionic neuron.

• Here the fibers synapse and postganglionic fibers join the fibers of the maxillary nerve, which travels through the inferior orbital fissure.

• However, the ciliary ganglion is not simply a relay station connecting "preganglionic" to "postganglionic" nerve fibers.

• Sympathetic postganglionic neurons usually secrete norepinephrine and are named sympathetic adrenergic neurons.

• The completion of the reflex circuit by vagus efferents leads to the stimulation of postganglionic muscarinic nerves.

• By adding a large dose of nicotine, the ganglion (site of relay between pre- and postganglionic fibers) is blocked.

• They play several roles, including acting as the main end-receptor stimulated by acetylcholine released from postganglionic fibers in the parasympathetic nervous system.

• In response to this stimulus postganglionic neurons with two important exceptions release norepinephrine, which activates adrenergic receptors on the peripheral target tissues.

• The target synapse of the postganglionic neuron is mediated by adrenergic receptors and is activated by either noradrenaline (norepinephrine) or adrenaline (epinephrine).